[ 10.868854][ T157] netconsole selftest: netcons_ugeO1 [ 10.868876][ T157] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.868878][ T157] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 157, name: bash [ 10.868880][ T157] preempt_count: 1, expected: 0 [ 10.868881][ T157] RCU nest depth: 0, expected: 0 [ 10.868882][ T157] locks held by bash/157: 4, last CPU#0: [ 10.868884][ T157] #0: ffffffffab199cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.868897][ T157] #1: ffffffffab199d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.868901][ T157] #2: ffffffffab089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.868906][ T157] #3: ffffffffab089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x202/0x4f0 [ 10.868910][ T157] irq event stamp: 227840 [ 10.868912][ T157] hardirqs last enabled at (227839): [] __down_trylock_console_sem+0x86/0xa0 [ 10.868914][ T157] hardirqs last disabled at (227840): [] console_emit_next_record+0x3f8/0x4f0 [ 10.868916][ T157] softirqs last enabled at (227592): [] restore_fpregs_from_user+0x1cf/0x490 [ 10.868919][ T157] softirqs last disabled at (227590): [] restore_fpregs_from_user+0xc3/0x490 [ 10.868922][ T157] Preemption disabled at: [ 10.868923][ T157] [] vprintk_emit+0x31b/0x3e0 [ 10.868928][ T157] CPU: 0 UID: 0 PID: 157 Comm: bash Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.868932][ T157] Tainted: [W]=WARN [ 10.868933][ T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.868935][ T157] Call Trace: [ 10.868937][ T157] [ 10.868938][ T157] dump_stack_lvl+0x6f/0xa0 [ 10.868944][ T157] ? vprintk_emit+0x31b/0x3e0 [ 10.868946][ T157] __might_resched.cold+0x1fe/0x2c1 [ 10.868950][ T157] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.868954][ T157] ? __kmalloc_noprof+0xdb/0x760 [ 10.868959][ T157] __kmalloc_noprof+0x443/0x760 [ 10.868961][ T157] ? alloc_buf.isra.0+0x4b/0x260 [ 10.868967][ T157] ? do_raw_spin_unlock+0x59/0x250 [ 10.868969][ T157] alloc_buf.isra.0+0x4b/0x260 [ 10.868972][ T157] put_chars+0x1e1/0x2f0 [ 10.868975][ T157] ? __send_to_port+0x420/0x420 [ 10.868976][ T157] ? printk_get_next_message+0x2fe/0x7d0 [ 10.868980][ T157] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.868983][ T157] ? validate_chain+0x38b/0xc20 [ 10.868987][ T157] hvc_console_print+0x292/0x780 [ 10.868990][ T157] ? __lock_acquire+0x518/0xc20 [ 10.868992][ T157] ? __lock_acquire+0x518/0xc20 [ 10.868996][ T157] ? hvc_write+0x3a0/0x3a0 [ 10.868999][ T157] ? rcu_is_watching+0x16/0xd0 [ 10.869002][ T157] ? lock_acquire+0x13c/0x160 [ 10.869006][ T157] console_emit_next_record+0x252/0x4f0 [ 10.869010][ T157] ? devkmsg_read+0x4e0/0x4e0 [ 10.869014][ T157] ? rcu_is_watching+0x16/0xd0 [ 10.869016][ T157] ? lock_acquire+0x13c/0x160 [ 10.869020][ T157] console_flush_one_record+0x46f/0x710 [ 10.869024][ T157] ? console_emit_next_record+0x4f0/0x4f0 [ 10.869026][ T157] ? __lock_acquire+0x518/0xc20 [ 10.869031][ T157] console_unlock+0xee/0x1f0 [ 10.869033][ T157] ? console_flush_one_record+0x710/0x710 [ 10.869035][ T157] ? rcu_is_watching+0x16/0xd0 [ 10.869037][ T157] ? lock_acquire+0x60/0x160 [ 10.869040][ T157] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.869042][ T157] ? vprintk_emit+0x320/0x3e0 [ 10.869045][ T157] vprintk_emit+0x37c/0x3e0 [ 10.869048][ T157] ? wake_up_klogd_work_func+0x90/0x90 [ 10.869052][ T157] ? _copy_from_iter+0x1bb/0x1810 [ 10.869057][ T157] devkmsg_emit.constprop.0+0xbc/0xf1 [ 10.869062][ T157] ? vprintk_emit.cold+0x107/0x107 [ 10.869065][ T157] ? __kmalloc_noprof+0x302/0x760 [ 10.869067][ T157] ? idr_get_free+0x830/0x830 [ 10.869071][ T157] ? devkmsg_write+0xd1/0x2c0 [ 10.869074][ T157] ? _copy_from_iter+0x1bb/0x1810 [ 10.869077][ T157] devkmsg_write.cold+0x5a/0x8b [ 10.869080][ T157] ? vprintk_default+0x20/0x20 [ 10.869081][ T157] ? __lock_acquire+0x518/0xc20 [ 10.869084][ T157] ? vfs_lock_file+0x1b0/0x1b0 [ 10.869088][ T157] ? vprintk_default+0x20/0x20 [ 10.869091][ T157] new_sync_write+0x33e/0x760 [ 10.869095][ T157] ? new_sync_read+0x750/0x750 [ 10.869097][ T157] ? rcu_read_lock_any_held+0x3c/0x90 [ 10.869105][ T157] vfs_write+0x6a2/0xbd0 [ 10.869109][ T157] ksys_write+0x116/0x250 [ 10.869112][ T157] ? __ia32_sys_read+0xc0/0xc0 [ 10.869114][ T157] ? do_raw_spin_unlock+0x59/0x250 [ 10.869117][ T157] ? rcu_is_watching+0x16/0xd0 [ 10.869120][ T157] do_syscall_64+0xff/0x530 [ 10.869122][ T157] ? exc_page_fault+0xee/0x100 [ 10.869126][ T157] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.869128][ T157] RIP: 0033:0x7fa01b42854e [ 10.869132][ T157] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa [ 10.869134][ T157] RSP: 002b:00007fffcda952a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 10.869137][ T157] RAX: ffffffffffffffda RBX: 00007fa01b5a9580 RCX: 00007fa01b42854e [ 10.869138][ T157] RDX: 0000000000000023 RSI: 000055d6d06a9d20 RDI: 0000000000000001 [ 10.869140][ T157] RBP: 00007fffcda952b0 R08: 0000000000000000 R09: 0000000000000000 [ 10.869140][ T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023 [ 10.869141][ T157] R13: 0000000000000023 R14: 000055d6d06a9d20 R15: 0000000000000000 [ 10.869148][ T157]